Joseph robison



I (No Model.)

J. ROBISON.

GAS, OIL, 0R VAPOR ENGINE.

' Patented Jan. 8, 1895.

-UNITED STATES,

PATENT JOSEPH ROBISON, OF oREENBUs'H, ASSIGNOR OF TWO-FIFTHS TO Jess s"1 MILLS ,AND GEORGE meson, OF ALBANY, NEW YORK;

GAS, olt, ORVAPOR ENGINE.

SPECIFICATION forming part of Letters Patent No. 532.098, dated January8,1 895.

. Application filed May 24, 1894. Serial No. 512,309. (No model.)

To all whom it'may concern:

Be it known that I, JOSEPH ROBISON, a citizen of'the United States,residing atGreenbush, Rensselaer county, New York, have in- 5 ventedcertain new and useful Improvements in Gas, Oil, or VaporEngines; and Ido hereby declare thecfollowing to be a full, clear, and exactdescription of the invention, such as avill enable others skilled in theart to which it appertains to make and use the same, reference being badto the accompanying drawing,and to the figures of reference markedthereon, whichforms a part of this specification.

The object of my invention is to provide a new and improved gas, oil orvapor engine.

Inthe drawing the figure shows a side elevation of a vertical gas, oilor vapor engine with my vaporizing andignition tube and its heatingjacket, my gas and air mixer and my exhaust valve shown in verticalsection.

In the drawing the numeral 1 shows the engine cylinder; 2, thefly-wheel; 3, the belt wheel; 4 and 4, gear wheels in the relation oftwo to one; 5, a cam on the journal of the gear 4, by which the exhaustvalve 12 is operated, said valve 12' having its stem pivoted to thevalve by a balland socket joint 12 and a sharp edged seat for the valve12", the valve stem having a spring 8 bearing against a nut and actingto close the valve, said nu't having a hollow or tubular extension inwhich the rod 8 loosely plays up and down, said rod 8 ha'v ing to forcethat valve open in order to allow an inflow of air through opening 26into the cylinder. On cam 6 is a crescent 7 which operates the rod 9which passes through the steadying sleeve 9' and the bracket and at itsouter endis yoked to the pivoted lever 16 which lever is also pivoted tothe upright arm 17 which acts to open the oil valve 21 against i thepressure of the spring about itsstem.

having a copper or other metallic stem end attached to the valve stemand.operat-' 19 shows my vaporizing and ignition tuber passing throughor into it and connected to the outer cndof the vaporizer and igniter isthe valvefll and its casing. Aboutjthe ignition' and. vaporizing tube 19is a heating jacket'22 and underthejacketis a source of heat 18preferably a vapor or oil burner and preferably suppliedfwith fuelthrough pipe 18 frompipe 2i which pipe 2% leads to a tank of oil 23. 1

In the cylinderwili be seen a perforated annular sieve 14 which ispreferably mide of strong material like boiler plate and finelyperforated and attached preferably to the head of the cylinder 1 inanywell known manner as by bolting it. fast thereto, the diameter of theannular sieve being preferably somewhat lessthan the inside (liameterofthe cylinder so as to leave a slight space be tween the sides of thesieve and the inside surface of the cylinder, and hanging down into thecylinder" suiliciently to receive the charge of gas or vapo'r from theignition and vaporizing tube 19. A complete understanding of the enginewill be derived from the following explanation of its operation.

The tank is charged with oil, preferably 150 proof or test kerosene. Theoil is then lighted in the burner 18 and allowed to burn until tube 19is heated .to redness. Fly wheelZ-is now turned when the gears -i and 4willset in motion the came 5, 6, and the crescent As the crown of theearn 6 rises to its highest point or to any point predetermined, the arm10 rises forcing the free end of lever l0-to press down the air valve25, the piston of the enginebeing on its down or suction stroke.Crescent? has also operated to raise arm 9 and force lever 16 upwardwhich forces valve 21 off its seat allowing a char-goof oil from tank 23to enter through that valve and pass into the ignition and vaporizingtube 19 where the oil is vaporized by coming in contact with the heatedsurfaces of the pulse and with heater. stem 20 and this vapor passesthrough openings lfiabout the base of stem 20 into the engine cylinderand through the sieve 14. As the piston rises on its compressionsiliilit, the oil vapor or gas and the air that have been sucked intothe cylinder by the suetiw, stroke of the piston, are now compressed 1n:

' mixed and a part of the mixed oil-vapor or gas and air is forced backinto the ignition.-

tube 19 and. ignited which causes the neces' sary explosion intbe-engln'e'eyltnder; The piston now descends again and ,atwa'r- Jointwhich is'five sixths of "its downward stroke "the cam o-begins tooperate so as to raise the exhaust valve.12 and the products ofcombustion are discharged through this valve as indicated by the'smallarrow.-

,The engine will be understood as operating on What is universally knownas the Otto cycle. As the piston rises on its compression stroke valves21 and 25 are closed.

The valve 12', the ignition and vaporizing tube 19, the sieve 14 and themethod of op-- erating the valves 21, 12 and 25 bypositive movement arethe new and novel features in thisengine shown and described. 7

The valve 12' has a ballantl socket connec-.

tion 12--with-its*istem and a sharp or knifeedged seat 12" in orderth'at th'e'valve 12' may be seatedbythe downwardpnll.of'the stem andhave an even bearing on its seat nrider all circumstances whether sedin'ent collects on the under side of the valve or ,noLor whether anyforeign substance rests on the knife edged seat or not, the knife edgedseatcutting throngh any substance that will'ordinarily present itself toit. The sieve lat acts as a strainer to the oil vapor and air thilt'envztors-the cylinder on the suction strekebfthe piston and still more so onthe compression" stroke, as during the compression stroke the mixed gasand air is forced more or less'through the hneperforations andthoroughlymixed,;' that portion ,of the mixture re'entering'theiignition and vaporizingt'ube being'compelled' to pass through the sieveand is thoroughly mixed ready for ignition.

The drawing represents the 'engineand valves in positiondnringthe"suction-stroke ot' th e piston, h I

My ignition and vaporizing d eviee, thesieve 'Emd, the intake valve'niaybe usedon a horizontal vapor or gas engine as we as on a vertical one,and While I have shown one form one form onlyiot arrangeof an engine andI named I ment of my improved devices above do ,not confine myself tothe exactform shown" inventiotrso that? those skilled. in thearttowhi'ch itappertains' may make and use the same, what I claim,- anddesire tosecure by Letters Paten't, is-

In anoil or vapor engine an ignition. and 1 vaporizing device having anintake valve 'arranged-to receive itssqpply' of oil below the *valve bygr'avityend' by gravity to pass the oilthroughthe-valve when the valveis'opened and havingmeans whereby the valve isop-ened and closedautomatically at predetermined times; the ignition and vaporizing tubehaving a heatretainiug body located inside thereof andports-,leadin-gtherefrom into the cylinder;

and asource of heat-wheat the ignition device and. a nonconductingjacket therefor substantially as zdeseribedn a In testimony whereofI'aflix'm-y signature in presence of'two witnesses- .JosEPH RostsoN.

Witnesses: J. F. HA-RRIS,

W, ,M; BROWN.

